JQ 977 then QF 412 at Melbourne
Perth → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
00:20JQ 977 from Perth at the gate
07:10QF 412 to Sydney Kingsford Smith leaves the gate
6 h 50 apart on the timetable
The last days
JQ 977 and QF 412 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.